In Python. Use a for loop to find str$2$ in str$1$ and prints number of occurrences of str$2$ in str$1($Hint: use str split$)$

Write a function that takes in an integer and calculates and returns the factorial of the integer.

Write a program that finds the minimum and maximum values of a list of integers created using the list$()$ function $($list can have $+$ve and $-$ve values$).$ Use abs$()$ function to use absolute value of the integers. Have your program call the function using list $15,-99,1,22,3$

$($Optional$)$ Write a function to sort a list $($do not use the python sort$()$ function$)$